查询词典 absorption coefficient

Result: Evaporative Light-Scattering Detector has been widely used in assaying the compounds which have no UV absorption or when wavelengths for maximal UV absorption are under 200nm in natural products.

结果 ：蒸发光散射器在测定没有紫外吸收或仅在紫外末端有吸收的成分上有较大的优势和广泛的应用。

For the future application of manganese oxide in microwave absorption, microwave absorption mechanism of the samples was discussed in detail.

详细分析了产物微波吸收的机理，为锰氧化物在微波吸收领域的实际应用打下基础。

Database was developed using in-situ water components absorption data to analyze the correlationship between absorption coefficients of suspended substances and their concentrations in the water color bands of MODIS and MERIS reflectance,respectively.Based on the bio-optical theory models and the remote sensing retrieval semi-analysis algorithm of Carder-MODIS phytoplankton optical characteristics,the sensitive bands adapting to local water optical characteristics were selected to develop empirical models of inherent optical characteristics,apparent optical parameters and component concentrations.And the remote sensing retrieval of water inherent optical characteristics and concentrations in the Hangzhou Bay at the MODIS band was achieved by this model.

利用实测水体组分吸收数据建立分析数据集，分别分析MODIS与MERIS特征波段水体悬浮物吸收系数与悬浮物浓度和遥感反射率的相关性；在生物光学理论模型的基础上，参考Carder-MODIS浮游植物固有光学性质遥感反演半分析算法，选择适合本地(来源：ABC论7f文网www.abclunwen.com)水体光学特点的特征波段，建立固有光学参数、表观光学参数以及成分浓度之间的经验模型，基于MODIS特征波段实现杭州湾水体固有光学性质及其浓度的遥感反演。

Rresults from those studies can be summariazed as follow:(1) A preliminary study no correlationship between the UV-VIS reflection spectrum of tomato fruit surface and the lycopene amount of tomato fruit was undertaken. Based on observation from this study, a damage-free and in-situ detection technique of lycopene amount from tomato was developed with UV-VIS reflection spectroscopy;(2) The geometrical isomers of lycopene were separated successfully on C30-HPLC-PDA-ELSD. The absorption coefficients of Z-isomers were consequently dedermined. The geometrical isomer composition of lycopene could therefore be assessed. Those efforts formed a solid base to identify the natural product from synthetic compound of lycopene;(3) Lycopene resource from the fruit of Autumn oliver was proved to be available for industrial application. An extraction methos of lycopene from the fruit of Autumn oliver by supercritical carbon dioxide was developed at laboratory scale;(4) A method to extract lycopene by supercritical liquid with improved efficiency was developed; Data from this investigation suggested that a proper raw material pre-extraction process was important for a better extraction efficiency;(5) Variation in the geometrical isomer composition of lycopene during its metabolish in rat was assessed. A large amount of Z-isomers were observed. This variation took place in serum;(6) The absorption rate and accumulation in serum of natural lycopene in rat were assessed;(7) Ability to quench singlet oxygen by different geometrical isomers of lycopene was compared;(8) It was detected that whether natural lycopene had functions to regule blood-lipids and LDL antioxidation;(9) A C31 degradation piece of lycopene was found in the prostate gland of rat.

研究结果包括：[1]应用UV-VIS反射光谱法建立了番茄果实中番茄红素含量的无损伤、现场检测技术；[2]应用C30-HPLC-PDA-ELSD技术实现了对番茄红素几何异构体的分离，测定了不同顺式异构体的吸光系数，建立了天然番茄红素几何异构体组成的检测方法，为区分和鉴定人工合成品和天然产物奠定了基础；[3]证实了秋橄榄果实中的番茄红素资源具有工业开发价值，并建立了超临界CO_2萃取的实验室方法；[4]探索了提高番茄红素超临界流体萃取效率的方法，证明了物料前处理对提高萃取效率起了极其重要的作用；[5]观察了番茄红素在大鼠体内几何异构体组成的变化情况，发现了大量顺式异构体的存在，并证实了几何异构体组成在血清中发生了显著变化；[6]测定了天然番茄红素在大鼠体内的吸收率和在大鼠血清中的动态积累规律；[7]比较了不同番茄红素几何异构体淬灭单线态氧的能力；[8]检测了天然番茄红素是否具有调节血脂作用和抗低密度脂蛋白氧化的功能；[9]首次发现大鼠前列腺内存在番茄红素C31降解片段，并证实其仍具有淬灭单线态氧的能力。

The FTIR spectrum of DTC-TETA showed strong absorption peaks at 1 461-1 388 cm-1 and 1 174-996 cm-1 which were attributed to partly double bonds of C and C,respectively.The UV spectrum of DTC-TETA had two absorption peaks at 265 and 290 nm,assigned to π—π* transition of N…C…S radical and nonbonding electron n—π* transition of S…C…S radical to conjugated system,respectively.

在DTC-TETA的红外光谱图中，在1461-1388cm-1处和1174-996cm-1处分别出现含有部分双键性质的〖JGC〖ZJXS，YN键和键的特征吸收峰；在紫外光谱图中，分别在265和290 nm处出现两个最大吸收峰，分别对应于N…C…S基团的π—π*跃迁和S…C…S基团中硫原子上非键电子向共轭体系的n—π*跃迁；元素分析结果表明该化合物中碳、氢、氮、硫的摩尔比近似为

After the skin absorption accelerants and surface active agents of different proportions were put into glad happy troches,the influences on the effective compositions of magnolol and skin absorptions of honokiol were studied by use of the experiment methods of high efficient liquid phase The experimental results showed that the skin absorption accelerants and surface active.

采用离体大鼠皮为皮肤模型，自制透皮吸收装置，研究了在欣乐片剂中加入不同比例的透皮吸收促进剂和表面活性剂后，它们对有效成分厚朴酚和和厚朴酚透皮吸收的影响。

As the hydraulic system works, the capacity of oil box will change at any moment. When the capacity decreases, the air will enter the moisture absorption after filtered. The desiccant in the absorption sorbs the moisture, then the desiccated air bursts through the entry single way valve and comes into the oil box, at the same time the atmosphere outside the oil box will close the deflated single way valve.

液压系统工作时油箱液面会随时发生变化，当液面下降时油箱外的空气被滤清器过滤后，进入吸湿器，吸湿器内干燥剂吸收空气中的水分，干燥后的空气推开进气单向阀进入油箱，同时油箱外大气关闭放气单向阀。

VP-16 existed in the solid dispersion as amorphous forms or solvates based on the profiles of DSC and PXRD. The absorption of VP-16 was better in upper intestine, and the absorption of VP-16 solid dispersions in jejunum was improved remarkably.

VP-16在小肠上半段吸收较好，当载体对药物质量比≥3时，固体分散体在空肠段吸收有显著增加，且VP-16/S-40固体分散体的吸收比VP-16/F68固体分散体的吸收好。

Pumpkin ( Cucurbita moschata Duch.)'No.1 Shengzhen'was used as rootstock for melon ( Cucumis melo L.)'Yumeiren'in this experiment, and the own-root plant was used as control. The results showed that the root active absorption capability of grafted melon plants with pumpkin stock increased. The quantity of xylem sap of grafted melon was more than own-root. The absorption capabilities of nitrogen and potassium were higher, but lower for phosphorus than the control.

提要 以薄皮甜瓜品种'玉美人'作接穗，以白籽南瓜'圣砧一号'为砧木进行嫁接，以自根苗为对照的结果表明，嫁接植株的南瓜根系主动吸收能力增强，其伤流量比自根植株的大，植株吸收氮钾的能力高于自根植株，而吸收磷的能力则有所降低。

In order to investigate the profile of absorption, excretion and retainment of As〓S〓, and to estimate the influence of Semen platycladi and other excipient in As〓S〓 absorption, we studied the pharmacokinetics in humans and mice respectively.

为了了解As〓S〓复方胶囊在人体内吸收、排泄、蓄积等规律，我们进行了临床药代动力学研究，同时，为了比较复方制剂及不同赋形剂对As〓S〓吸收的影响，进行了动物药代动力学实验。

I hope that this success is just the first in a long series.

我希望这只是成功的开始。

Three dimensional stresses on the interface of tire and soil, tire deflection and soil sinkage are measured.

测试轮胎——沙土界面上的三向应力、轮胎变形和沙土沉陷；建立考虑剪切应力对沙土承载特性产生影响的车轮牵引性能预测模型；分析车轮作用下土壤的纵向稳定性。